Answer:
x=-1, 3
2 solutions, strategies=quadratic formula
Step-by-step explanation:
1. square the whole equation
(√2x+3)²=(x)²
2x+3=x²
since it becomes a quadratic equation, take all terms on one side = to 0
x²-2x-3=0
Use the quadratic formula, because the equation cannot be factored.
x=(-b±√b²-4ac)/2a
x=(-(-2)±√4-4×1×-3)/2×1
x=(2±√4+12)/2
x=(2±√16)/2
x=(2±4)/2
x=1±2
x=1+2, 1-2
∴x=-1, 3
Answer:
Options A and C
Step-by-step explanation:
<u>To have a unit rate of change of 4.5 means to have the slope at 4.5</u>
A. y = 62 + 4.5x GOOD
B. c = 4.5 + 3h - 1 WRONG
C. c = 12 + 4.5h - 4.5 GOOD
D. y = 3.5x + 1 WRONG
E. y = 4.5 + 20x WRONG
Answer: Options A and C
Answer:8
Step-by-step explanation:
X+56=x^2
X^2-x-56=0
X^2-8x+7x-56=0
X(x-8)+7(x-8)=0
(X+7)(x-8)=0
X+7=0 or x-8=0
X=-7 or x=8
Answer:1.16 is the answer
Step-by-step explanation:
feet (ft) yards (yd)
5.8 ft 1.933333 yd
6.8 ft 2.266667 yd
7.8 ft 2.6 yd
8.8 ft 2.933333 yd
9.8 ft 3.266667 yd
10.8 ft 3.6 yd
11.8 ft 3.933333 yd
12.8 ft 4.266667 yd
13.8 ft 4.6 yd
14.8 ft 4.933333 yd
15.8 ft 5.266667 yd
16.8 ft 5.6 yd
17.8 ft 5.933333 yd
18.8 ft 6.266667 yd
19.8 ft 6.6 yd
20.8 ft 6.933333 yd
21.8 ft 7.266667 yd
22.8 ft 7.6 yd
23.8 ft 7.933333 yd
24.8 ft 8.266667 yd